Re-saves a single PDF with its title, author, subject, keywords, creator and producer fields cleared. It does not recompress or downsample images, so file size reduction is usually small.
Processed in your browser — your file is not uploaded.
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This tool rewrites the PDF and strips document metadata. It does not recompress embedded images, so files that are mostly large photos will shrink little or not at all; files with bloated metadata or unoptimised structure shrink more.
How to Use
1Upload one PDF. Only a single file is accepted per run.
2Read the note on the page: this tool strips metadata and re-saves the file, it does not recompress images.
3Click Compress PDF.
4Download compressed.pdf and compare its size with the original.
About this tool
Updated
What this tool changes, and what it leaves alone
It blanks six metadata fields and re-saves the PDF. Images, fonts and page content are not touched.
The operation is a load-and-save cycle with the document properties emptied: title, author, subject, keywords, creator and producer. There are no sliders, quality presets or target-size settings because the tool does not compress image data.
That makes the name generous. A more accurate description is a metadata cleaner that occasionally saves a few kilobytes.
Realistic expectations for size
Expect savings from zero to a small percentage, and occasionally a slightly larger file.
Metadata is tiny. Where the original file was produced by software that wrote an untidy structure, re-saving can trim some overhead. A PDF that is mostly scanned pages or photographs will stay close to its original size because those images are copied as they are. One file is processed at a time, up to 200 MB, entirely in your browser.
Where it helps and where it does not
Use it to scrub author and software fields before sharing a document; do not use it to hit an email attachment limit.
• Removing an author name and the producing-software tag before publishing a PDF.
• Re-saving a file that some viewers open awkwardly, to see if a clean save helps.
For a dedicated version of the first job see PDF Metadata Remover. For a file that is too big to send, you are better off splitting it into parts with Split PDF, or reducing a large image-based PDF at the source, since this site has no image-recompressing PDF tool.
Limitations in plain terms
There is no way to choose a compression level, because no image compression happens.
The tool cannot reach a target size, cannot downsample images and gives no warning about how much was saved; compare the file sizes yourself. If the size does not drop, that is the expected result for most files, not a fault.
Features
Accepts one PDF per run, up to 200 MB
Clears the title, author, subject, keywords, creator and producer fields
Re-saves the file through a PDF library, which can tidy the file structure
Does not downsample, recompress or remove images
No quality or compression-level settings, because there are none to set
Runs in your browser; the file is not uploaded for the job
FAQ
How much smaller will my PDF get?
Usually very little, and sometimes the file does not shrink at all or even grows slightly. Metadata is a few hundred bytes of text. Only files with unusually bloated metadata or an untidy internal structure show a noticeable saving.
Why does my scanned or photo-heavy PDF stay almost the same size?
Most of the size of such files is embedded images, and this tool leaves images untouched. It has no image quality or resolution setting, so it cannot help with scans.
What exactly is removed?
Six document information fields: title, author, subject, keywords, creator and producer. Page content, text, images, links and forms are left as they are.
Are my files uploaded?
No. The PDF is opened and re-saved in your browser, and the file is not sent to a server for this job.
Is this good for reducing a PDF to an email size limit?
Not reliably. If you need real size reduction, a tool that recompresses images is required, and this one does not. It is better suited to removing identifying metadata before sharing.